.demo-spin-icon-load{
    -webkit-animation: ani-demo-spin 1s linear infinite;
            animation: ani-demo-spin 1s linear infinite;
}
@-webkit-keyframes ani-demo-spin {
    from { -webkit-transform: rotate(0deg); transform: rotate(0deg);}
    50%  { -webkit-transform: rotate(180deg); transform: rotate(180deg);}
    to   { -webkit-transform: rotate(360deg); transform: rotate(360deg);}
}
@keyframes ani-demo-spin {
    from { -webkit-transform: rotate(0deg); transform: rotate(0deg);}
    50%  { -webkit-transform: rotate(180deg); transform: rotate(180deg);}
    to   { -webkit-transform: rotate(360deg); transform: rotate(360deg);}
}